chr12-53504394-C-G

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBA1

The NM_134323.2(TARBP2):​c.423-3C>G variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00356 in 1,553,002 control chromosomes in the GnomAD database, including 166 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.019 ( 96 hom., cov: 32)
Exomes 𝑓: 0.0018 ( 70 hom. )

Consequence

TARBP2
NM_134323.2 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.9977
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.431
Variant links:
Genes affected
TARBP2 (HGNC:11569): (TARBP2 subunit of RISC loading complex) HIV-1, the causative agent of acquired immunodeficiency syndrome (AIDS), contains an RNA genome that produces a chromosomally integrated DNA during the replicative cycle. Activation of HIV-1 gene expression by the transactivator Tat is dependent on an RNA regulatory element (TAR) located downstream of the transcription initiation site. The protein encoded by this gene binds between the bulge and the loop of the HIV-1 TAR RNA regulatory element and activates HIV-1 gene expression in synergy with the viral Tat protein. Alternative splicing results in multiple transcript variants encoding different isoforms. This gene also has a pseudogene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6
Variant 12-53504394-C-G is Benign according to our data. Variant chr12-53504394-C-G is described in ClinVar as [Benign]. Clinvar id is 781258.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0652 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TARBP2NM_134323.2 linkuse as main transcriptc.423-3C>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000266987.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TARBP2ENST00000266987.7 linkuse as main transcriptc.423-3C>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_134323.2 P4Q15633-1

Frequencies

GnomAD3 genomes
AF:
0.0193
AC:
2938
AN:
152140
Hom.:
96
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0674
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00662
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.0163
GnomAD3 exomes
AF:
0.00599
AC:
1150
AN:
192130
Hom.:
31
AF XY:
0.00432
AC XY:
442
AN XY:
102348
show subpopulations
Gnomad AFR exome
AF:
0.0667
Gnomad AMR exome
AF:
0.00359
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000162
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000219
Gnomad OTH exome
AF:
0.00224
GnomAD4 exome
AF:
0.00184
AC:
2583
AN:
1400744
Hom.:
70
Cov.:
31
AF XY:
0.00164
AC XY:
1139
AN XY:
693624
show subpopulations
Gnomad4 AFR exome
AF:
0.0668
Gnomad4 AMR exome
AF:
0.00482
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000188
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000928
Gnomad4 OTH exome
AF:
0.00395
GnomAD4 genome
AF:
0.0193
AC:
2941
AN:
152258
Hom.:
96
Cov.:
32
AF XY:
0.0184
AC XY:
1367
AN XY:
74458
show subpopulations
Gnomad4 AFR
AF:
0.0673
Gnomad4 AMR
AF:
0.00661
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.0161
Alfa
AF:
0.0101
Hom.:
6
Bravo
AF:
0.0222
Asia WGS
AF:
0.00375
AC:
13
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
17
DANN
Benign
0.89
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.90
SpliceAI score (max)
0.72
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.72
Position offset: 3

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs74090784; hg19: chr12-53898178; COSMIC: COSV57199244; COSMIC: COSV57199244; API